公开(公告)号：EP0764265A4

公开(公告)日：1998-05-20

申请号：EP95923727

申请日：1995-06-05

申请人： UNIV BOSTON

发明人： MADANSHETTY SAMEER I

IPC分类号： G01N29/02 ,  G01N15/06 ,  G21C17/00

CPC分类号： G01N15/06

摘要： A method of detecting (40) particles in ultra-clean liquids in a tube (10) using acoustic scattering and cavitation (30) comprises inducing gas caps to form on the particles. The gas caps are then separated from the particles to form bubbles in the liquid. An acoustic signature received as an echo from the bubbles is detected. The detection of the acoustic signature indicates the presence of particles in the liquid.